Column-form.



W. M. VENABLE.

COLUMN FORM.

APPLICATION FILED FEB. 11, 1912.

1,1 14,946. Patented 0ct.27,1914.

2 SHEETS-SHEET 1.

IN VEN TOR.

W. M. VENABLB.

COLUMN FORM.

APPLICATION FILED FEB.17, I912.

Patented Oct. 27, 1914.

2 SHBETBSHEET 2.

IN VEN TOR. 922441116. 0mm

WITNESSES:

A TT RN]: Y.

UNITED. STATES PATENT OFFICE.

" CORIPORATION OF NEW JERSEY.

, WILLIAM MAYO VEN'ABLE, 0F PITTSBURGH, PENNSYLVANIA, ASSIGNOB, TO BLAW COLLAPSIBLE STEEL CENTERING COMPANY, OF PITTSBURGH, PENNSYLVANIA, A

ooLUMN-romu.

Specification of Letters Patent.

Patented Oct. 27, 1914.

Application filed February 17, 1912. Serial No. 678,214.

To all whom it may concern:

Be it known that I, WILLIAM M. VENABLE, a citizen of the United States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Column- Forms, of which the following is a specification.

The invention relates to forms for use in the production of concrete columns. It has for its primary objects; the provision of an improved type of column form which adjustable in size may be used in theformation of columns of widely varying dlmensions; the provision of a form of relatively light construction which shall have a maximum degree of stiffness; the provision of a form requiring a minimum number of fastening devices and which may be very easily assembled and disassembled; and the provision of a form in which the parts will nest for storage or shipment, thus occupying a relatively small amount of space and being protected from injury. Certain embodiments of the invention are illustrated in the accompanying drawings, wherein Figure 1 is an assembled view in perspective, showing my improved column form, Fig. 2 shows in enlarged section the means whereby the ends of the overlapping securing bars are held in position, Fig. 3 is a perspective view showing the means whereby the corner sections of the mold may be secured together in alinement, Fig. 41 1s a perspective View of the column head for the top of the column, and Fig. 5 is an end view of a modified form of column mold wherein the mold has eight sides instead of four sides. 7

As indicated in Fig. 1, the form is composed of four corner sections, 1, 2, 3, 4, and four sections 5, 6, 7, 8, which lie intermediate the corner sections, the corner sect-ions being all alike, and the intermediate sections being all alike. The sections comprising the form are all composed preferably of sheet metal, and the corner sections are each provided with two outwardly turned flanges 9 and 10, such flanges being slotted as indicated at 11, in order to receive the securing bars 12. The intermediate sections 5, 6, 7, and S are also each provided with a stiffening angle 13 to the plate with which it contacts. The securing bars overlap at their ends as indicated in the drawin vided with a series 0 perforations 13,w rich each end being roregister with each other at the overlapping ends and are ada ted to be secured together by the devlce indicated in Fig. 2.. The hold- Inasmuch as the intermediate members 5, 6, 7, and 8 overla sections, and the olding bars 12 are provided with a series of openings, the form has a very considerable range of adjustment. The form may be decreased in size until the flanges 9 and 10 engage the stiffening angles :13 on the intermediate lates, and may be expanded in size until t 1e edges of the sections 5, 6, 7, and 8 barely overlap the edges of the corner sections. The ribs 9 and 10 on the corner sections and the flanges 13 upon the intermediate sections serve to give the structure such stiffness that relatively light sheet metal may be employed. The bars 12, which may be spaced as closely asdesirable, give a large amount of rigidity to the structure, and serve to revent any distortion which otherwise miglit occur, due to the use of the light sheet metal. A plurality of the corner sections 1, 2, 3, and 4 may be nested together for storing or shipment, thus giving great compactness and preventing them from being dented or injured in shipment. It will also be noted that the number of fastening devices required is limited, and that such fastenings are of such a character as to permit a rapid engagement or disengagement. The apparatus may be cheaply constructed, the parts being merely sheared, punched and bent by automatic machinery and all riveting being dispensed with where the ribs 13 are secured to the plates by weld- 1n Ihe perforations 11 preferably do not extend clear to the outer edge of the flanges 9 and 10, and 13, as otherwise the sections would not be held against movement in both directions, by the securing bars 12, but it will be understood that my invention is not limited to the use of perforations which extend only partially throu h the flanges, as in some cases it might be Found desirable to extend the perforations clear through the the corner members or flanges. It will alsobe understood that the invention is not limited to the kind of stifl'eningribs shown on the lates 5, 6, 7 and 8, nor to the number of ri s, such num her being dependent upon the width of the plates and the character of the work. Various other means might also be employed for securing the ends of the bars 12 adjustably together, without de arting' from the'invention which contemplates any and all means whereby this adjustment may be secured.

In Figure 3 is illustrated a means where" by the-corner sections; maybe secured togetherend to end,-suclr-merms comprising a- -p lap pla'te or an'glelfi which overlaps the opposing ends of the'sectiona and'is provided with a pair of outturned flanges 17 and 18 provided with. perfiorationa. vadapted to l register with the perforations 11 andwneceive the securing bars 12. The securing bars extending through the registering perforations 11 and 19 serve to'mamtain the lap plate 16 rigidly in position. The lap plate 16 may be of such length as to constitute an extension member in some cases, the corner sections not abutting in such cases, or if desired the lap plate may be dispensed with and the corner sections merely overlap thus providing an adjustable connection between the corner sections.-

Fig. 4 illustrates a cap member or column head for use at thetop oi the column. This column head comprisesa plate 20 having a.

flange .21 which fits the upper-edge of the corner section 1. To the rear'face of the flange 21 is welded a'plate 22 having the flanges 23 and fitting the outer surface'of the corner section 1. The flanges 23 are provided with perforations registering with the perforations 11 in the flanges of the mem er 1, and the securing means are adapted to pass through these registering portions and so hold the column head rigidly in position. It will be seen that this column head may be adjusted vertically, although in such cases the flange 21 would abut the end of the corner section 1 only in the position shown.

Fig. 5 illustrates the application of the invention to a column having more than four sides. In such structure the members 1', 2', 3 and 4: correspond 8 are form 0 arran e to the corner members 1, 2 3, and d, m the structure of Fig. 1, and the members 5'; 6", 7', and 8' correspond to the membore 5, 6, 7, and 8 in the construction of Fig. 1. The intermediate members 5, 6', 7', and provided with stifl'ening ribs in the the flanges 13'. These flanges 13 are perforated as are also the outturned flanges of the sections 1', 2', 3', and 4', and securing bars 12' pass through theses flanges and support the various sections of the form "in precisely the same manner that the secur ;ing bars 12 in the structure of Fig. 1 simort the various sections in such-structure. ?It will be seen that the-invention'is applicable to columns having any desired numberiof sides;

@ Having thus described a. inrivenftioneand lillustrated its use, what I claim as new md? desire to secure flowing: p

1. A column form. compr sing corner by Letters Patent isztheatoh members of sheet metal angular in cross sec- 5 tion and having outwardly turned perforated stifl'ening flanges-extending longitu's 'dinally ofthe members;- sheet metal form members intermediate the cornerjmembersialso provided with outwardly turned periforated stiffening flangesextending longi-': itudinally' of the form members; securing bars extending slidabl through the perform column form comprising corner mem- In testimony whereof l[ have hereunto signed my name in the presence of the two subscribed witnesses.

WM. MAYO VJENABLE.

Witnesses:

Lmirm A. Mrnns, Anonwou'rnr MARTIN. 

